aws_kms – Perform various KMS management tasks

From Get docs
Ansible/docs/2.8/modules/aws kms module


aws_kms – Perform various KMS management tasks

New in version 2.3.


Synopsis

  • Manage role/user access to a KMS key. Not designed for encrypting/decrypting.

Requirements

The below requirements are needed on the host that executes this module.

  • python >= 2.6
  • boto

Parameters

Parameter Choices/Defaults Comments

alias

-

An alias for a key. For safety, even though KMS does not require keys to have an alias, this module expects all new keys to be given an alias to make them easier to manage. Existing keys without an alias may be referred to by key_id. Use aws_kms_facts to find key ids. Required if key_id is not given. Note that passing a key_id and alias will only cause a new alias to be added, an alias will never be renamed. The 'alias/' prefix is optional.


aliases: key_alias

aws_access_key

string

AWS access key. If not set then the value of the AWS_ACCESS_KEY_ID, AWS_ACCESS_KEY or EC2_ACCESS_KEY environment variable is used.


aliases: ec2_access_key, access_key

aws_secret_key

string

AWS secret key. If not set then the value of the AWS_SECRET_ACCESS_KEY, AWS_SECRET_KEY, or EC2_SECRET_KEY environment variable is used.


aliases: ec2_secret_key, secret_key

clean_invalid_entries

boolean

  • no
  • yes

If adding/removing a role and invalid grantees are found, remove them. These entries will cause an update to fail in all known cases.

Only cleans if changes are being made.

debug_botocore_endpoint_logs

boolean

added in 2.8

  • no

  • yes

Use a botocore.endpoint logger to parse the unique (rather than total) "resource:action" API calls made during a task, outputing the set to the resource_actions key in the task results. Use the aws_resource_action callback to output to total list made during a playbook. The ANSIBLE_DEBUG_BOTOCORE_LOGS environment variable may also be used.

description

-

added in 2.8

A description of the CMK. Use a description that helps you decide whether the CMK is appropriate for a task.

ec2_url

string

Url to use to connect to EC2 or your Eucalyptus cloud (by default the module will use EC2 endpoints). Ignored for modules where region is required. Must be specified for all other modules if region is not used. If not set then the value of the EC2_URL environment variable, if any, is used.

enabled

boolean

added in 2.8

  • no
  • yes

Whether or not a key is enabled

grant_types

-

List of grants to give to user/role. Likely "role,role grant" or "role,role grant,admin". Required when mode=grant.

grants

-

added in 2.8

A list of grants to apply to the key. Each item must contain grantee_principal. Each item can optionally contain retiring_principal, operations, constraints, name.

Valid operations are Decrypt, Encrypt, GenerateDataKey, GenerateDataKeyWithoutPlaintext, ReEncryptFrom, ReEncryptTo, CreateGrant, RetireGrant, DescribeKey, Verify and Sign

Constraints is a dict containing encryption_context_subset or encryption_context_equals, either or both being a dict specifying an encryption context match. See https://docs.aws.amazon.com/kms/latest/APIReference/API_GrantConstraints.html

grantee_principal and retiring_principal must be ARNs

key_id

-

Key ID or ARN of the key. One of alias or key_id are required.


aliases: key_arn

mode

-

  • grant

  • deny

Grant or deny access.

policy

-

added in 2.8

policy to apply to the KMS key

profile

string

Uses a boto profile. Only works with boto >= 2.24.0.

purge_grants

boolean

added in 2.8

  • no

  • yes

Whether the grants argument should cause grants not in the list to be removed

purge_tags

boolean

added in 2.8

  • no

  • yes

Whether the tags argument should cause tags not in the list to be removed

region

string

The AWS region to use. If not specified then the value of the AWS_REGION or EC2_REGION environment variable, if any, is used. See http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region


aliases: aws_region, ec2_region

role_arn

-

ARN of role to allow/deny access. One of role_name or role_arn are required.

role_name

-

Role to allow/deny access. One of role_name or role_arn are required.

security_token

string

AWS STS security token. If not set then the value of the AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN environment variable is used.


aliases: access_token

state

-

added in 2.8

  • present

  • absent

Whether a key should be present or absent. Note that making an existing key absent only schedules a key for deletion. Passing a key that is scheduled for deletion with state present will cancel key deletion.

tags

-

added in 2.8

A dictionary of tags to apply to a key.

validate_certs

boolean

  • no
  • yes

When set to "no", SSL certificates will not be validated for boto versions >= 2.6.0.



Notes

Note

  • If parameters are not set within the module, the following environment variables can be used in decreasing order of precedence AWS_URL or EC2_URL, AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY or EC2_ACCESS_KEY, AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY or EC2_SECRET_KEY, AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN, AWS_REGION or EC2_REGION
  • Ansible uses the boto configuration file (typically ~/.boto) if no credentials are provided. See https://boto.readthedocs.io/en/latest/boto_config_tut.html
  • AWS_REGION or EC2_REGION can be typically be used to specify the AWS region, when required, but this can also be configured in the boto config file


Examples

- name: grant user-style access to production secrets
  aws_kms:
  args:
    mode: grant
    alias: "alias/my_production_secrets"
    role_name: "prod-appServerRole-1R5AQG2BSEL6L"
    grant_types: "role,role grant"
- name: remove access to production secrets from role
  aws_kms:
  args:
    mode: deny
    alias: "alias/my_production_secrets"
    role_name: "prod-appServerRole-1R5AQG2BSEL6L"

# Create a new KMS key
- aws_kms:
    alias: mykey
    tags:
      Name: myKey
      Purpose: protect_stuff

# Update previous key with more tags
- aws_kms:
    alias: mykey
    tags:
      Name: myKey
      Purpose: protect_stuff
      Owner: security_team

# Update a known key with grants allowing an instance with the billing-prod IAM profile
# to decrypt data encrypted with the environment: production, application: billing
# encryption context
- aws_kms:
    key_id: abcd1234-abcd-1234-5678-ef1234567890
    grants:
      - name: billing_prod
        grantee_principal: arn:aws:iam::1234567890123:role/billing_prod
        constraints:
          encryption_context_equals:
            environment: production
            application: billing
        operations:
          - Decrypt
          - RetireGrant

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key Returned Description

aliases

list

always

list of aliases associated with the key


Sample:

['aws/acm', 'aws/ebs']

aws_account_id

string

always

The AWS Account ID that the key belongs to


Sample:

1234567890123

changes_needed

dictionary

always

grant types that would be changed/were changed.


Sample:

{'role': 'add', 'role grant': 'add'}

creation_date

string

always

Date of creation of the key


Sample:

2017-04-18T15:12:08.551000+10:00

description

string

always

Description of the key


Sample:

My Key for Protecting important stuff

enabled

string

always

Whether the key is enabled. True if KeyState is true.


grants

complex

always

list of grants associated with a key


constraints

dictionary

always

Constraints on the encryption context that the grant allows. See https://docs.aws.amazon.com/kms/latest/APIReference/API_GrantConstraints.html for further details


Sample:

{'encryption_context_equals': {'aws:lambda:_function_arn': 'arn:aws:lambda:ap-southeast-2:012345678912:function:xyz'}}

creation_date

string

always

Date of creation of the grant


Sample:

2017-04-18T15:12:08+10:00

grant_id

string

always

The unique ID for the grant


Sample:

abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234

grantee_principal

string

always

The principal that receives the grant's permissions


Sample:

arn:aws:sts::0123456789012:assumed-role/lambda_xyz/xyz

issuing_account

string

always

The AWS account under which the grant was issued


Sample:

arn:aws:iam::01234567890:root

key_id

string

always

The key ARN to which the grant applies.


Sample:

arn:aws:kms:ap-southeast-2:123456789012:key/abcd1234-abcd-1234-5678-ef1234567890

name

string

always

The friendly name that identifies the grant


Sample:

xyz

operations

list

always

The list of operations permitted by the grant


Sample:

['Decrypt', 'RetireGrant']

retiring_principal

string

always

The principal that can retire the grant


Sample:

arn:aws:sts::0123456789012:assumed-role/lambda_xyz/xyz

had_invalid_entries

boolean

always

there are invalid (non-ARN) entries in the KMS entry. These don't count as a change, but will be removed if any changes are being made.


key_arn

string

always

ARN of key


Sample:

arn:aws:kms:ap-southeast-2:123456789012:key/abcd1234-abcd-1234-5678-ef1234567890

key_id

string

always

ID of key


Sample:

abcd1234-abcd-1234-5678-ef1234567890

key_state

string

always

The state of the key


Sample:

PendingDeletion

key_usage

string

always

The cryptographic operations for which you can use the key.


Sample:

ENCRYPT_DECRYPT

origin

string

always

The source of the key's key material. When this value is AWS_KMS, AWS KMS created the key material. When this value is EXTERNAL, the key material was imported or the CMK lacks key material.


Sample:

AWS_KMS

policies

list

always

list of policy documents for the keys. Empty when access is denied even if there are policies.


Sample:

{'Version': '2012-10-17', 'Id': 'auto-ebs-2', 'Statement': [{'Sid': 'Allow access through EBS for all principals in the account that are authorized to use EBS', 'Effect': 'Allow', 'Principal': {'AWS': '*'}, 'Action': ['kms:Encrypt', 'kms:Decrypt', 'kms:ReEncrypt*', 'kms:GenerateDataKey*', 'kms:CreateGrant', 'kms:DescribeKey'], 'Resource': '*', 'Condition': {'StringEquals': {'kms:CallerAccount': '111111111111', 'kms:ViaService': 'ec2.ap-southeast-2.amazonaws.com'}}}, {'Sid': 'Allow direct access to key metadata to the account', 'Effect': 'Allow', 'Principal': {'AWS': 'arn:aws:iam::111111111111:root'}, 'Action': ['kms:Describe*', 'kms:Get*', 'kms:List*', 'kms:RevokeGrant'], 'Resource': '*'}]}

tags

dictionary

always

dictionary of tags applied to the key


Sample:

{'Name': 'myKey', 'Purpose': 'protecting_stuff'}




Status

Authors

  • Ted Timmons (@tedder)
  • Will Thames (@willthames)

Hint

If you notice any issues in this documentation you can edit this document to improve it.


© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.8/modules/aws_kms_module.html